This hurricane season in the North Atlantic, as El Niño digs in and prepares to cool burlier tropical depressions onto their heels, a strange but historically cyclical cooling event in the waters south of Greenland suggests a weakening Atlantic Meridional Overturning Circulation (AMOC) might leave temperatures to the south might, as suggested during the last great cold blob of 2016, further diminish hurricane development. A lighter-duty hurricane season, of course, means a collective sigh of relief among coastal and coastal-adjacent communities at large, and a whiffling sniffle from the few who look forward to the chance to ride on the back of something taller than the toddler-sized trade-wind swells that stave off abject starvation for East Coast surfers during most of the warmer months. The ocean currents giveth, and the ocean currents taketh away.…